IOTA: recent technology and science
Creators
- Traub, Wesley A.1
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Berger, J.-P.2
- Brewer, Michael3
- Carleton, Nathaniel P.1
- Kern, Pierre2
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Kraus, Stefan3, 4
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Lacasse, Marc G.1
- McGonagle, William H.5
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Millan-Gabet, Rafael6
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Monnier, John D.7
- Pedretti, Ettore1, 7
- Ragland, Sam1
- Reich, Robert K.5
- Schloerb, F. Peter3
- Schuller, Peter1
- Souccar, Kamal3
- Wallace, Gary3
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1.
Harvard-Smithsonian Center for Astrophysics
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2.
Institut de Planétologie et d'Astrophysique de Grenoble
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3.
University of Massachusetts Amherst
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4.
Max Planck Institute for Radio Astronomy
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5.
MIT Lincoln Laboratory
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6.
California Institute of Technology
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7.
University of Michigan–Ann Arbor
Contributors
Other:
Abstract
Closure-phase science and technology are dominant features of the recent activity at IOTA. Our science projects include imaging several spectroscopic binary stars, imaging YSOs including Herbig AeBe stars, detecting asymmetries in a large sample of Mira stars, and measuring water shells around Miras. Many technology projects were pursued in order to make these science observations possible. These include installation of a third-generation integrated-optics 3-beam combiner (IONIC), completion of the real-time control system software, installation of fringe-packet tracking software, use of narrow sub-H band filters, validation of the phase-closure operation, development of CPLD control of the science camera (PICNIC) and star-tracker camera (LLiST), installation of a new star-tracker camera, expansion of the observing facility, and installation of new semi-automated optical alignment tools.
Additional Information
© 2004 Society of Photo-optical Instrumentation Engineers (SPIE). We thank the Smithsonian Institution for a Predoctoral Fellowship award to E. Pedretti, and NASA JPL for Michelson Postdoctoral Fellowships awarded to S. Ragland and E. Pedretti. We thank NASA for its previous support of the 3-telescope upgrade project at IOTA, and the NSF for its sponsorship of our star-tracker upgrade project under grant number AST-0138303. We thank Dr. Bernard B. Kosicki of the Advanced Imaging Technology Group at MIT Lincoln Laboratory for his help in this project. Finally we thank the Smithsonian Institution for providing us with an upgraded facility at IOTA, as well as long-term operational support. This publication made use of NASA's Astrophysics Data System (ADS) at http://adsabs.harvard.edu/.Attached Files
Published - 482.pdf
Files
482.pdf
Additional details
Identifiers
- Eprint ID
- 92321
- Resolver ID
- CaltechAUTHORS:20190116-113809773
Funding
- Smithsonian Institution
- NASA Postdoctoral Fellowship
- NSF
- AST-0138303
Dates
- Created
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2019-01-17Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field
Caltech Custom Metadata
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 5491